kittlee



(No Model.) 2 Sheets-Sheet -1.

C. SCHRADER & F. W. KITTLER.

- PIRE ESCAPE. No. 317,862.

(No Model.)

2 Sheets-Sheet v 2. C. SGI-IRADER 81; P. W. KITTLER.

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Patented May l2, 18%85.

FIRE ESCAPE.

m @an 555515 y UNITED STATES PATENT OEEICE.

CONRAD SCHRADER AND FRIEDRICH YV. KIT'ILER, OF MILWAUKEE, WIS.

FIRE- ESCAPE.

SPECIFICATION forming par* of Letters Patent No. 317,862, dated May 12,1885.

Application filed March 17, 1885. (No model.)

To @ZZ whom. it may concern:

Be it known that we, CONRAD SCHEADEE and FRIEDRICH W. KITTLER, ofMilwaukee, in the county of Milwaukee, and in the State of Wisconsin,have .invented certain new and useful Improvements in Fire-Escapes; andwe do herebyT declare that the following is a full, clear, and exactdescription thereof.

Our invention relates to lire-escapes, and will be fully describedhereinafter.

In the drawings, Figure 1 is an isometric perspective view of our devicewhen closed. Fig. 2 is a bottom view of the lower platform of ourdevice; and Fig. 3 is an isometric perspective View of our device partlyextended; and Figs. 4 and 5 are details.

A is the lower platform, which is mounted on trucks or wheels.

C are lazy-tongs elevators, the lower legs of which are hinged to blocksc, that slide in ways c' in each end of the truck or lower platform, andthe two blocks c at each end are connected on their under side by cablesor chains d that cross each other and pass around sheaves each to adrum, D, on a shaft, D', the outer ends of which latter are providedwith cranks d' and ratchets dZ and pawls d3, as shown in Fig. 2.

B are the side lazy-tongs, the lower members of which are hinged to barsb, that slide in ways similar to those occupied by the blocks c, andhave ratchet-teeth a on their under side to engage with cog-wheels b' onshafts D', and thus the lower members of the four lazy-tongs areconnected so that they may be drawn together by means of the shafts D',and of course as this is done the entire structure will be eX- tended.The lower sills ofthe upper platform, F, are grooved as at ff', asshown, and the roof of groovef is ribbed, as at g, to receive a sheave,G, in the bifureated upper end, G', of each of the upper members ofthelazy-tongs, while the ends of the axles upon which the sheaves G turnproject into the grooves f Suitable braces, H, connect the fourlazytongs and bind the structure together.

The platform F has a railing, F', about it, and this railing is providedat proper points with gates K, which are hinged at the bottom, and whendropped serve as a staging or bridge between the burning building andthe platform.

Having thus fully described our invention, what we claim as new, anddesire to secure by Letters Patent, is-

In a ire-escape, the combination of the sliding bars b and blocks c withthe lazy-tongs, lower platform, shafts D', cog-wheels b', andconnections d, as set forth.

In testimony that we claim the foregoing we have hereunto set our hands,at Milwaukee, in the county of Milwaukee and State of Wiscousin, in thepresence of two witnesses.

CONRAD SGHRAD'ER. FRIEDRICH W. KITTLER. Vitnesses:

H. G. UNDERwooD, E. G. AsMUs.

